./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 648d197bd9e5d325bfbd4ba63b1498edcdaa8a19265c026c3c04bed53d00cdaa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:32:02,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:32:02,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:32:02,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:32:02,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:32:02,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:32:02,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:32:02,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:32:02,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:32:02,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:32:02,977 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:32:02,978 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:32:02,978 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:32:02,979 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:32:02,979 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:32:02,980 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:32:02,980 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:32:02,981 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:32:02,981 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:32:02,982 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:32:02,983 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:32:02,983 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:32:02,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:32:02,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:32:02,985 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:32:02,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:32:02,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:32:02,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:32:02,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:32:02,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:32:02,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:32:02,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:32:02,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:32:02,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:32:02,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:32:02,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:32:02,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:32:02,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:32:02,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:32:02,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:32:02,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:32:02,991 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:32:02,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:32:02,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:32:02,991 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:32:02,992 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:32:02,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:32:02,992 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 648d197bd9e5d325bfbd4ba63b1498edcdaa8a19265c026c3c04bed53d00cdaa [2023-12-02 18:32:03,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:32:03,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:32:03,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:32:03,255 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:32:03,256 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:32:03,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i [2023-12-02 18:32:06,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:32:06,280 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:32:06,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i [2023-12-02 18:32:06,289 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data/fc3882c24/2dcb77a472db41a19b06d926e8cb84d3/FLAG20f69baa7 [2023-12-02 18:32:06,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data/fc3882c24/2dcb77a472db41a19b06d926e8cb84d3 [2023-12-02 18:32:06,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:32:06,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:32:06,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:32:06,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:32:06,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:32:06,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1419cf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06, skipping insertion in model container [2023-12-02 18:32:06,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,342 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:32:06,486 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i[914,927] [2023-12-02 18:32:06,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:32:06,538 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:32:06,550 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i[914,927] [2023-12-02 18:32:06,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:32:06,585 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:32:06,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06 WrapperNode [2023-12-02 18:32:06,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:32:06,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:32:06,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:32:06,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:32:06,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,630 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-12-02 18:32:06,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:32:06,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:32:06,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:32:06,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:32:06,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:32:06,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:32:06,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:32:06,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:32:06,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (1/1) ... [2023-12-02 18:32:06,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:32:06,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:32:06,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:32:06,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:32:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:32:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:32:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:32:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:32:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:32:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:32:06,830 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:32:06,833 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:32:07,051 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:32:07,157 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:32:07,158 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:32:07,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:32:07 BoogieIcfgContainer [2023-12-02 18:32:07,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:32:07,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:32:07,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:32:07,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:32:07,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:32:06" (1/3) ... [2023-12-02 18:32:07,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da3962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:32:07, skipping insertion in model container [2023-12-02 18:32:07,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:06" (2/3) ... [2023-12-02 18:32:07,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da3962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:32:07, skipping insertion in model container [2023-12-02 18:32:07,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:32:07" (3/3) ... [2023-12-02 18:32:07,169 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-7.i [2023-12-02 18:32:07,190 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:32:07,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:32:07,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:32:07,250 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ad38e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:32:07,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:32:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 18:32:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 18:32:07,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:32:07,261 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:32:07,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:32:07,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:32:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1491016060, now seen corresponding path program 1 times [2023-12-02 18:32:07,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:32:07,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354042502] [2023-12-02 18:32:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:32:07,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:32:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:32:07,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:32:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:32:07,548 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:32:07,550 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:32:07,552 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:32:07,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:32:07,559 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:32:07,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:32:07,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:32:07 BoogieIcfgContainer [2023-12-02 18:32:07,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:32:07,600 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:32:07,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:32:07,601 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:32:07,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:32:07" (3/4) ... [2023-12-02 18:32:07,604 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:32:07,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:32:07,606 INFO L158 Benchmark]: Toolchain (without parser) took 1301.42ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 80.5MB in the beginning and 102.8MB in the end (delta: -22.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-12-02 18:32:07,606 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:32:07,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.14ms. Allocated memory is still 125.8MB. Free memory was 80.5MB in the beginning and 68.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 18:32:07,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.39ms. Allocated memory is still 125.8MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:32:07,608 INFO L158 Benchmark]: Boogie Preprocessor took 29.29ms. Allocated memory is still 125.8MB. Free memory was 66.2MB in the beginning and 64.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:32:07,609 INFO L158 Benchmark]: RCFGBuilder took 497.98ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 64.9MB in the beginning and 124.8MB in the end (delta: -59.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-12-02 18:32:07,610 INFO L158 Benchmark]: TraceAbstraction took 437.57ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 18:32:07,610 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 169.9MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:32:07,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.14ms. Allocated memory is still 125.8MB. Free memory was 80.5MB in the beginning and 68.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.39ms. Allocated memory is still 125.8MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.29ms. Allocated memory is still 125.8MB. Free memory was 66.2MB in the beginning and 64.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.98ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 64.9MB in the beginning and 124.8MB in the end (delta: -59.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 437.57ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 169.9MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 34. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] float var_1_2 = 200.875; [L24] float var_1_3 = 8.2; [L25] float var_1_4 = 100000000000.4; [L26] unsigned char var_1_5 = 5; [L27] unsigned long int var_1_6 = 100; [L28] double var_1_9 = 4.6; [L29] double var_1_10 = 2.5; [L30] double last_1_var_1_9 = 4.6; [L80] isInitial = 1 [L81] FCALL initially() [L82] int k_loop; [L83] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_2=1607/8, var_1_3=41/5, var_1_4=500000000002/5, var_1_5=5, var_1_6=100, var_1_9=23/5] [L83] COND TRUE k_loop < 1 [L84] CALL updateLastVariables() [L73] last_1_var_1_9 = var_1_9 [L84] RET updateLastVariables() [L85] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_3=41/5, var_1_4=500000000002/5, var_1_5=5, var_1_6=100, var_1_9=23/5] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_3=41/5, var_1_4=500000000002/5, var_1_5=5, var_1_6=100, var_1_9=23/5] [L62] var_1_3 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_4=500000000002/5, var_1_5=5, var_1_6=100, var_1_9=23/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_4=500000000002/5, var_1_5=5, var_1_6=100, var_1_9=23/5] [L64] var_1_4 = __VERIFIER_nondet_float() [L65] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_5=5, var_1_6=100, var_1_9=23/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_5=5, var_1_6=100, var_1_9=23/5] [L66] var_1_5 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_6=100, var_1_9=23/5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_6=100, var_1_9=23/5] [L68] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_5=0, var_1_6=100, var_1_9=23/5] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_9=23/5, var_1_10=5/2, var_1_1=1, var_1_5=0, var_1_6=100, var_1_9=23/5] [L69] var_1_10 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=23/5, var_1_1=1, var_1_5=0, var_1_6=100, var_1_9=23/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=23/5, var_1_1=1, var_1_5=0, var_1_6=100, var_1_9=23/5] [L85] RET updateVariables() [L86] CALL step() [L34] COND TRUE ! (last_1_var_1_9 <= (var_1_3 - var_1_4)) [L35] COND FALSE !(last_1_var_1_9 < var_1_3) [L42] var_1_1 = var_1_5 [L47] unsigned char stepLocal_0 = var_1_5; [L48] COND FALSE !(stepLocal_0 < 0) [L51] var_1_6 = ((((((var_1_5) > (var_1_1)) ? (var_1_5) : (var_1_1))) + ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) + var_1_1) [L53] COND TRUE var_1_1 <= var_1_6 [L54] COND FALSE !(var_1_2 >= var_1_3) [L86] RET step() [L87] CALL, EXPR property() [L76-L77] return (((! (last_1_var_1_9 <= (var_1_3 - var_1_4))) ? ((last_1_var_1_9 < var_1_3) ? ((! (var_1_3 > last_1_var_1_9)) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_5))) : (var_1_1 == ((unsigned char) var_1_5))) : (var_1_1 == ((unsigned char) var_1_5))) && ((var_1_5 < 0) ? (var_1_6 == ((unsigned long int) var_1_5)) : (var_1_6 == ((unsigned long int) ((((((var_1_5) > (var_1_1)) ? (var_1_5) : (var_1_1))) + ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) + var_1_1))))) && ((var_1_1 <= var_1_6) ? ((var_1_2 >= var_1_3) ? (var_1_9 == ((double) var_1_10)) : 1) : 1) ; [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=23/5, var_1_10=23/5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_9=23/5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=23/5, var_1_10=23/5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_9=23/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:32:07,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 648d197bd9e5d325bfbd4ba63b1498edcdaa8a19265c026c3c04bed53d00cdaa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:32:09,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:32:09,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:32:09,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:32:09,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:32:09,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:32:09,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:32:09,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:32:09,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:32:09,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:32:09,800 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:32:09,800 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:32:09,801 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:32:09,801 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:32:09,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:32:09,802 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:32:09,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:32:09,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:32:09,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:32:09,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:32:09,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:32:09,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:32:09,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:32:09,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:32:09,811 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:32:09,811 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:32:09,811 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:32:09,812 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:32:09,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:32:09,813 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:32:09,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:32:09,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:32:09,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:32:09,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:32:09,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:32:09,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:32:09,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:32:09,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:32:09,815 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:32:09,815 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:32:09,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:32:09,816 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:32:09,816 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:32:09,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:32:09,817 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 648d197bd9e5d325bfbd4ba63b1498edcdaa8a19265c026c3c04bed53d00cdaa [2023-12-02 18:32:10,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:32:10,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:32:10,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:32:10,156 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:32:10,156 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:32:10,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i [2023-12-02 18:32:13,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:32:13,339 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:32:13,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i [2023-12-02 18:32:13,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data/1646c2444/d451d78213b74cd9a644fe7c1d3732da/FLAGbf2cfdef1 [2023-12-02 18:32:13,367 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/data/1646c2444/d451d78213b74cd9a644fe7c1d3732da [2023-12-02 18:32:13,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:32:13,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:32:13,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:32:13,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:32:13,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:32:13,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d42b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13, skipping insertion in model container [2023-12-02 18:32:13,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,414 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:32:13,585 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i[914,927] [2023-12-02 18:32:13,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:32:13,646 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:32:13,661 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-7.i[914,927] [2023-12-02 18:32:13,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:32:13,702 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:32:13,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13 WrapperNode [2023-12-02 18:32:13,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:32:13,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:32:13,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:32:13,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:32:13,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,755 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-12-02 18:32:13,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:32:13,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:32:13,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:32:13,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:32:13,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:32:13,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:32:13,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:32:13,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:32:13,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (1/1) ... [2023-12-02 18:32:13,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:32:13,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:32:13,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:32:13,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:32:13,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:32:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:32:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:32:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:32:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:32:13,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:32:13,973 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:32:13,976 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:32:15,059 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:32:15,094 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:32:15,094 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:32:15,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:32:15 BoogieIcfgContainer [2023-12-02 18:32:15,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:32:15,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:32:15,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:32:15,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:32:15,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:32:13" (1/3) ... [2023-12-02 18:32:15,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a28bdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:32:15, skipping insertion in model container [2023-12-02 18:32:15,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:32:13" (2/3) ... [2023-12-02 18:32:15,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a28bdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:32:15, skipping insertion in model container [2023-12-02 18:32:15,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:32:15" (3/3) ... [2023-12-02 18:32:15,104 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-7.i [2023-12-02 18:32:15,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:32:15,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:32:15,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:32:15,176 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52dd84a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:32:15,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:32:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 18:32:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 18:32:15,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:32:15,190 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:32:15,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:32:15,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:32:15,196 INFO L85 PathProgramCache]: Analyzing trace with hash -642567761, now seen corresponding path program 1 times [2023-12-02 18:32:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:32:15,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272462909] [2023-12-02 18:32:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:32:15,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:15,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:32:15,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:32:15,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 18:32:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:32:15,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:32:15,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:32:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 18:32:15,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:32:15,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:32:15,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272462909] [2023-12-02 18:32:15,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272462909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:32:15,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:32:15,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:32:15,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478783351] [2023-12-02 18:32:15,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:32:15,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:32:15,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:32:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:32:15,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:32:15,496 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-02 18:32:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:32:15,549 INFO L93 Difference]: Finished difference Result 61 states and 95 transitions. [2023-12-02 18:32:15,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:32:15,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-12-02 18:32:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:32:15,560 INFO L225 Difference]: With dead ends: 61 [2023-12-02 18:32:15,561 INFO L226 Difference]: Without dead ends: 29 [2023-12-02 18:32:15,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:32:15,569 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:32:15,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:32:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-02 18:32:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-12-02 18:32:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 18:32:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2023-12-02 18:32:15,616 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 44 [2023-12-02 18:32:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:32:15,617 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2023-12-02 18:32:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-02 18:32:15,617 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-12-02 18:32:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 18:32:15,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:32:15,620 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:32:15,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:32:15,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:15,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:32:15,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:32:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1139445715, now seen corresponding path program 1 times [2023-12-02 18:32:15,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:32:15,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406798763] [2023-12-02 18:32:15,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:32:15,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:15,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:32:15,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:32:15,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 18:32:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:32:16,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:32:16,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:32:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-02 18:32:16,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:32:16,246 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:32:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406798763] [2023-12-02 18:32:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406798763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:32:16,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:32:16,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:32:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036712791] [2023-12-02 18:32:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:32:16,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:32:16,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:32:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:32:16,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:32:16,250 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 18:32:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:32:17,876 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2023-12-02 18:32:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:32:17,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2023-12-02 18:32:17,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:32:17,882 INFO L225 Difference]: With dead ends: 80 [2023-12-02 18:32:17,883 INFO L226 Difference]: Without dead ends: 52 [2023-12-02 18:32:17,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:32:17,885 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 43 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 18:32:17,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 105 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 18:32:17,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-12-02 18:32:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2023-12-02 18:32:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.15625) internal successors, (37), 33 states have internal predecessors, (37), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 18:32:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2023-12-02 18:32:17,907 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 44 [2023-12-02 18:32:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:32:17,907 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-12-02 18:32:17,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 18:32:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-12-02 18:32:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 18:32:17,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:32:17,910 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:32:17,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 18:32:18,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:18,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:32:18,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:32:18,117 INFO L85 PathProgramCache]: Analyzing trace with hash -972035308, now seen corresponding path program 1 times [2023-12-02 18:32:18,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:32:18,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149629282] [2023-12-02 18:32:18,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:32:18,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:18,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:32:18,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:32:18,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 18:32:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:32:18,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 18:32:18,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:32:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-02 18:32:28,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:32:28,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:32:28,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149629282] [2023-12-02 18:32:28,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149629282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:32:28,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:32:28,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 18:32:28,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608784441] [2023-12-02 18:32:28,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:32:28,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 18:32:28,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:32:28,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 18:32:28,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-02 18:32:28,484 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 18:32:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:32:31,485 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2023-12-02 18:32:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 18:32:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2023-12-02 18:32:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:32:31,489 INFO L225 Difference]: With dead ends: 76 [2023-12-02 18:32:31,489 INFO L226 Difference]: Without dead ends: 74 [2023-12-02 18:32:31,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2023-12-02 18:32:31,491 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 68 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:32:31,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 82 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-02 18:32:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-02 18:32:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 52. [2023-12-02 18:32:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 18:32:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2023-12-02 18:32:31,507 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 45 [2023-12-02 18:32:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:32:31,507 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2023-12-02 18:32:31,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 18:32:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2023-12-02 18:32:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 18:32:31,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:32:31,509 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:32:31,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 18:32:31,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:31,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:32:31,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:32:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -971975726, now seen corresponding path program 1 times [2023-12-02 18:32:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:32:31,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709151179] [2023-12-02 18:32:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:32:31,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:31,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:32:31,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:32:31,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 18:32:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:32:31,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 18:32:31,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:32:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-02 18:32:35,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:32:35,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:32:35,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709151179] [2023-12-02 18:32:35,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709151179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:32:35,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:32:35,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:32:35,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974126096] [2023-12-02 18:32:35,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:32:35,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:32:35,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:32:35,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:32:35,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:32:35,167 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 18:32:36,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:32:36,161 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2023-12-02 18:32:36,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:32:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2023-12-02 18:32:36,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:32:36,162 INFO L225 Difference]: With dead ends: 54 [2023-12-02 18:32:36,162 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 18:32:36,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:32:36,164 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 20 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 18:32:36,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 124 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 18:32:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 18:32:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 18:32:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:32:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 18:32:36,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-12-02 18:32:36,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:32:36,166 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 18:32:36,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 18:32:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 18:32:36,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 18:32:36,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:32:36,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-02 18:32:36,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:32:36,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 18:32:37,237 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 18:32:37,237 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 18:32:37,237 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2023-12-02 18:32:37,237 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 18:32:37,238 INFO L899 garLoopResultBuilder]: For program point L48-2(lines 33 58) no Hoare annotation was computed. [2023-12-02 18:32:37,238 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-12-02 18:32:37,238 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0))) (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:32:37,238 INFO L899 garLoopResultBuilder]: For program point L65-1(line 65) no Hoare annotation was computed. [2023-12-02 18:32:37,239 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0))) (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:32:37,239 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-12-02 18:32:37,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 18:32:37,239 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-12-02 18:32:37,239 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 59 71) no Hoare annotation was computed. [2023-12-02 18:32:37,240 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 58) no Hoare annotation was computed. [2023-12-02 18:32:37,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 18:32:37,240 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 56) no Hoare annotation was computed. [2023-12-02 18:32:37,240 INFO L895 garLoopResultBuilder]: At program point L83-3(lines 83 89) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0))) (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:32:37,240 INFO L899 garLoopResultBuilder]: For program point L83-4(lines 83 89) no Hoare annotation was computed. [2023-12-02 18:32:37,241 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 18:32:37,241 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0))) (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:32:37,241 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0))) (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:32:37,241 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 46) no Hoare annotation was computed. [2023-12-02 18:32:37,242 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 46) no Hoare annotation was computed. [2023-12-02 18:32:37,242 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (or (and (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse0)) (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven .cse1))) (and (fp.leq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse0))) (fp.geq ~var_1_10~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg .cse1)))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:32:37,242 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-12-02 18:32:37,242 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-12-02 18:32:37,243 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 43) no Hoare annotation was computed. [2023-12-02 18:32:37,243 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 18:32:37,243 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-02 18:32:37,243 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-02 18:32:37,243 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 18:32:37,246 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 18:32:37,248 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:32:37,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:32:37,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:32:37,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:32:37,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:32:37,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:32:37,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:32:37 BoogieIcfgContainer [2023-12-02 18:32:37,262 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:32:37,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:32:37,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:32:37,263 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:32:37,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:32:15" (3/4) ... [2023-12-02 18:32:37,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 18:32:37,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 18:32:37,275 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 18:32:37,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-02 18:32:37,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 18:32:37,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 18:32:37,361 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 18:32:37,361 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 18:32:37,361 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:32:37,362 INFO L158 Benchmark]: Toolchain (without parser) took 23990.18ms. Allocated memory was 94.4MB in the beginning and 400.6MB in the end (delta: 306.2MB). Free memory was 70.8MB in the beginning and 358.5MB in the end (delta: -287.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,363 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:32:37,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.50ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 58.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.06ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 56.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,364 INFO L158 Benchmark]: Boogie Preprocessor took 40.56ms. Allocated memory is still 94.4MB. Free memory was 56.2MB in the beginning and 54.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,364 INFO L158 Benchmark]: RCFGBuilder took 1296.30ms. Allocated memory is still 94.4MB. Free memory was 54.4MB in the beginning and 66.3MB in the end (delta: -12.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,365 INFO L158 Benchmark]: TraceAbstraction took 22164.43ms. Allocated memory was 94.4MB in the beginning and 400.6MB in the end (delta: 306.2MB). Free memory was 65.3MB in the beginning and 363.7MB in the end (delta: -298.4MB). Peak memory consumption was 235.3MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,365 INFO L158 Benchmark]: Witness Printer took 99.22ms. Allocated memory is still 400.6MB. Free memory was 363.7MB in the beginning and 358.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:32:37,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.50ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 58.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.06ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 56.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.56ms. Allocated memory is still 94.4MB. Free memory was 56.2MB in the beginning and 54.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1296.30ms. Allocated memory is still 94.4MB. Free memory was 54.4MB in the beginning and 66.3MB in the end (delta: -12.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22164.43ms. Allocated memory was 94.4MB in the beginning and 400.6MB in the end (delta: 306.2MB). Free memory was 65.3MB in the beginning and 363.7MB in the end (delta: -298.4MB). Peak memory consumption was 235.3MB. Max. memory is 16.1GB. * Witness Printer took 99.22ms. Allocated memory is still 400.6MB. Free memory was 363.7MB in the beginning and 358.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.1s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 347 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 158 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 30 PreInvPairs, 44 NumberOfFragments, 226 HoareAnnotationTreeSize, 30 FomulaSimplifications, 166 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 1128 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 571 SizeOfPredicates, 25 NumberOfNonLiveVariables, 342 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 240/240 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-02 18:32:37,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058512a9-9460-406f-b335-aa8021df373b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE